Picture frame



FIG. 1 is a front perspective view of a picture frame, shown in a closed position, in accordance with my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof, the bottom plan view being a mirror image;

FIG. 5 is a left side elevational view thereof, the right side elevational view being a mirror image;

FIG. 6 is a front perspective view of the picture frame, shown in an open position, in accordance with my new design;

FIG. 7 is a front elevational view thereof;

FIG. 8 is a rear elevational view thereof;

FIG. 9 is a left side elevational view thereof, the right side elevational view being a mirror image;

FIG. 10 is a top plan view thereof; and,

FIG. 11 is a bottom plan view thereof.

The broken lines in the figures are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a picture frame, as shown and described. 